Automatic draw-bridge for canals



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S. L A M NO R 0H E .G m mm W A R D No. 28,148.. Patented May 8, 1860.

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G. C. BOVEY. DRAWBRIDGE FOR GANALS. No. 28,148. Patented May 8, 1860.

UNITED STATES PATENT OFFICE.

GEORGE C. BOVEY, OF GHILLICOTHE, OHIO.

AUTOMATIC DRAW-BRIDGE FOR CANALS.

Specification of Letters Patent No. 28,148, dated May 8, 1860.

To all whom 'it may concern:

Be it known that I, GEORGE C. BovEY of Chillicothe, in the county of Ross and State of Ohio, have invented a new and useful Improvement in Canal-Bridges; and I do hereby declare that the following is a full and exact description.

Figure 1 is an isolnetrical perspective view, Fig. 2 is a plan with section of a canal boat showing one of the draws displaced as when bridge is opened by the passing of a boat and the other draw in position for a traffic on the road. Fig. 3 is a view along the course of the canal with the plan as shown in Fig. 2. F ig. 4:, is a transverse vertical section of one draw and framing on an enlarged scale. Fig. 5 an end view of the one draw showing a portion of the arms. Fig. 6 is a horizontal section of one of the draws showing also a portion of the arms. Fig. 7 is a side and end view of wheels and rail on which the draws move the same letters and references apply to like parts in all the figures.

rods anchored in the bank and passed over i posts to support the arms; h h h h frames with friction rollers that the arms work in for the purpose of opening the draws.

I claim The combination of arrangements by which the draws of the bridge are opened readjusted and secured substantially as delineated and described the whole working as shown in model and drawings.

GEORGE C. BOVEY. lVitnesses J. T. STEWART, C. G. BALDWIN. 

